From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Reference sheet detailing conversions for standard atmospheric pressure.
| Identifier | ExFiles\Box 37\3\ scan 105 | |
| Date | 8th September 1917 guessed | |
| X 3178 STANDARD ATMOSPHERIC PRESSURE = pressure due to a column of mercury of 760 millimetres or 29.92 inches vertical height. = pressure due to a column of water of 10.333 metres or 11.300 yards of vertical height. = 1013700 dynes per square centimetre. = 1033.3 grams " " " = 1.0333 kilogram " " " = 14.697 pounds " " inch. = 8.503 tons " " yard. = 2116 pounds " " foot. | ||